Chemical Engineering - Chemical Engineering Thermodynamics

16. 

Which of the following is not an intensive property ?

A. Chemical potential
B. Surface tension
C. Heat capacity
D. None of these

Answer: Option C

Explanation:

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17. 

Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

A. Air cycle
B. Carnot cycle
C. Ordinary vapour compression cycle
D. Vapour compression with a reversible expansion engine

Answer: Option A

Explanation:

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18. 

Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

A. 1st
B. zeroth
C. 3rd
D. none of these

Answer: Option B

Explanation:

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19. 

The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is

A. -2 RT ln 0.5
B. -RT ln 0.5
C. 0.5 RT
D. 2 RT

Answer: Option B

Explanation:

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20. 

Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

A. 270
B. 327
C. 300
D. 540

Answer: Option B

Explanation:

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